Use Cases
Create and Configure
1
Choose the field type
In the current table, click add field and choose Link.
2
Choose the target table
In the configuration dialog, choose the table to link to, such as linking the orders table to the customers table.
3
Choose the link mode
Choose a one-way or two-way link as needed.
4
Configure relationship rules
Use Allow multiple selection and Allow duplicate values to configure one-to-one, one-to-many, many-to-one, or many-to-many relationships.
One-Way and Two-Way Links
Relationship Types
Use Allow multiple selection and Allow duplicate values together to define four common relationship types:Common Uses
- CRM customer management: In a
Companiestable, create a link field to aContactstable so one company can link to multiple contacts. - Project task assignment: In a
Taskstable, create a link field to aProjectstable so each task belongs to one project, while the project table can show related tasks. - Order line items: In an
Orderstable, link to aProductstable, then use lookup fields to show prices and rollup fields to calculate order totals.
Notes
- One-to-many limits: In a strict one-to-many relationship, when multiple selection is off on the Table B side, a Table B record linked by one Table A record cannot be selected by other Table A records. This works for data that should not be reused, such as ID numbers or employee profiles.
Link fields can only connect tables in the same Space. Lookup, Rollup, Conditional Lookup, and Conditional Rollup fields also need same-Space source data.

